Série ADD

FOR THE CREATIVE DESIGN OF CEILINGS IN COMFORT ZONES, WITH FIXED AIR CONTROL BLADES

Circular and square ceiling swirl diffusers

  • Nominal sizes 250, 300, 400, 450, 500, 600, 625
  • Volume flow rate range 20 – 465 l/s or 72 – 1674 m³/h
  • Diffuser face made of galvanised sheet steel, powder-coated
  • For supply and extract air
  • For variable and constant volume flows
  • For all types of ceiling systems, and with an extended border also suitable for freely suspended installation
  • Swirl unit inside for the best swirl effect and high induction levels
  • Ideal for comfort zones



Optional equipment and accessories

  • Exposed diffuser face available in RAL CLASSIC colours
  • Horizontal or vertical duct connection
  • Plenum box with cord-operated damper blade and pressure tap
ADD–Q 00133173_0


  • Application
  • Description

Application

  • Type ADD ceiling swirl diffusers are used as supply air or extract air diffusers for comfort zones
  • Attractive design element for building owners and architects with demanding aesthetic requirements
  • Horizontal swirling supply air discharge for mixed flow ventilation
  • The efficient swirl creates high induction levels, thereby rapidly reducing the temperature difference and airflow velocity (supply air variant)
  • For variable and constant volume flows
  • For supply air to room air temperature differences from –12 to +10 K
  • For room heights up to 4 m (lower edge of suspended ceiling)
  • For all types of ceiling systems

Special characteristics

  • For the creative design of ceilings in comfort zones
  • Diffuser faces in many different designs
  • For all types of ceiling systems, and with an extended border also suitable for freely suspended installation
  • Horizontal or vertical duct connection

Nominal sizes

  • 250, 300, 400, 450, 500, 600, 625

Variants

  • ADD-Q: Square diffuser face
  • ADD-R: Circular diffuser face
  • ADD-*-Z: Supply air
  • ADD-*-A: Extract air


Connection

  • H: Horizontal duct connection
  • V: Vertical duct connection

Parts and characteristics

  • Circular or square design diffuser face
  • Swirl unit and discharge nozzle for ideal horizontal supply air discharge
  • Plenum box with suspension holes and equalising element that ensures a uniform airflow through the diffuser face
  • Simple installation of the diffuser face due to central fixing screw with decorative cap

Attachments

  • M: Damper blade for volume flow rate balancing
  • MN: Pressure tap and cord-operated damper blade for volume flow rate balancing with the diffuser face in place

Accessories

  • Lip seal

Construction features

  • Spigot suitable for circular ducts to EN 1506 or EN 13180
  • Spigot with groove for lip seal (if accessory lip seal has been ordered)

Materials and surfaces

  • Diffuser face, swirl unit, plenum box and cross bar made of galvanised sheet steel
  • Discharge nozzle made of aluminium
  • Lip seal made of rubber
  • Swirl unit and discharge nozzle dip coated RAL 9005, jet black
  • Diffuser face powder-coated RAL 9010, pure white
  • P1: Powder-coated, RAL CLASSIC colour

Standards and guidelines

  • Sound power level of the air-regenerated noise measured according to EN ISO 5135

Maintenance

  • Maintenance-free as construction and materials are not subject to wear
  • Inspection and cleaning to VDI 6022

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